Steam-boiler.



A. Al OLSON.

STEAM BOILBB.

-APPLLOATION FILED Nov. 1s, 190s.

Patented Aug. 23, 1910.

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THE NDRIIS PETERS CO.. WASHINGTON, D. C.

ITED STATES PATENT OFFICE.

ALFRED A. OLSON, OF RIVERSIDE, ILLINOIS.

STEAM-BOILER.

To all whom it may concern.'

Be it known that I, ALFRED A. OLSON, a citizen of the United States,residing at Riverside, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in 4Steam-Boilers, of whichthe following is a specification.

My invention relates to tubular steam boilers and more specifically tothat class thereof commonly known as flash boilers.

The object'of my invention is the provision of a boiler of the charactermentioned in which the heat issuing from the burner or heat emittingmeans employed in conjunction therewith will be directed in such amanner that the outlet coils of the boiler will be subjected to thegreatest heat and t-he coils at the inlet end thereof will be subjectedto the least amount of heat. In other words it is my object to provide aboiler in which the water, through its coiled pipe constituting the bodyof the former, from the lower inlet end to the upper exhaust end thereofwill be gradually subjected to a more and more intense heat, the climaxof intensity of the heat to which the water is subjected being reachedwhen the latter has ascended to the exhaust end of the pipe.

A further object is the provision of a boiler as mentioned which will bedurable, compact, and of the highest possible eliticiency.

Other objects will appear hereinafter.

With these objects in view my invention consists in a tubular boilercharacterized as above mentioned and in certain details of constructionand arrangement of parts all as will be hereinafter fully described andparticularly pointed out in the appended claims.

My invention will be more readily understood by reference to theaccompanying drawings formingl a part of this specification, and in WhicFigure 1 is a partially sectional side elevation of my boiler, and Fig.2 is a top plan view thereof, the burner being removed.

Referring now to the drawings 1 indicates a legged cylindrical metallichousing or shell, upon an inwardly extending flange 1, provided at thelower extremity of whiczh, is supported the tubular body 2 of theboiler. Comprised in said body is a series of vertically alininghorizontally disposed fiat coils 3, connected one to the other to vvSpecification of Letters Patent.

Application filed November 15, 1909.

Vtioned immediately below the same.

Patented Aug. 23, 1910. serial No. 528,181. i

convolutions with the respective coils positioned immediatelyl` adjacentthereto. For instance, the coil 4, as clearly shown in Fig. 1, isconnected at its outer convolution with the outer convolution of thecoil 5 or that coil positioned immediately above the same, and at itsinner convolution with the inner convolution of the coil 6, or that coilposi- Arranged between the coils are angular spacing members 7 in theupper surfaces of which are provided substantially semi-circular curvedrecesses 8 for the reception of the convolutions of the coils positionedabove t-he same, thereby adapting said members to serve not only in thecapacity of means for spacing adjacent coils apart, as stated, but alsoas a means for spacing apart the convolutions of said coils.

Supported in the upper extremity of the housing 1 is a circular gasburner 9 provided wit-h emission openings 10 in its under side. Saidburner is secured in said housing by set screws 11 threaded in ears 12formed at the upper extremity of said housing. Gas

. under high pressure is fed into said burner through the pipe 13, whenthe device is in operation, hence the flame supported thereby will bedirected downwardly therefrom through the interstices formed in thecoiled body. In order that the iiame or heated gases be prevented frompassing down the cylindrical opening formed centrally in the body 1,since in such event a considerable proportion of the heat would escapeunutilized, a cylindrical member or core 14 is arranged therein. Thelatter is supported upon a cross bar 15 arranged upon the flange 1 ofthe housing 1.

Because of the advantage of subjecting the upper or outlet end of thebody 2 with the most intense heat and further so as not to too greatlyrestrict the gas passages from the burner to the remoter coils of saidbody; in other words, in order to effect the most effectual permeat-ionof the heat through said body, the coils of the latter, it will beobserved by reference to Fig. 4, from the lowermost upwardly aregradually reduced with reference tothe number of convolutions comprisedin each.

An opening 16 is provided at the upper extremity of the housing 1whereby ready access to the burner may be gained when desiring to lightthe latter preparatory to the operation of the device.

The operation of the device is as follows: Vater is introduced at thelower end of the tubular body l and is forced upwardly through thelatter by any external means such as a pump or the like. In its upwardpassage through said body, said water, as before described, is gradually`subjected to a more and more intense heat, the same leaving the upperor exhaust end of said body in the form of steam, which is immediatelyconveyed to the engine or other mechanism in conjunction with which theboiler is used.

By passing the heat downwardly over the coils and the water upwardlytherethrough, the cool incoming Water is subjected to the coolestportion of the applied heat and the superheated steam to the hottestportion of said heat, and the escape of the steam from the water and itspassage through the system is facilitated. The cool incoming water willextract heat from the coolest portion of the applied heat with greatereffect than the superheated steam would, since the relative differencein temperature is greater, and the steam generated may pass freelyupward which is its natural tendency.

`lhile I have shown what I deem to be the preferable form of my boiler Ido not wish to be limited thereto as there might be various `changesmade in the details of construction and arrangement of parts withoutdeparting from the spirit of the invention comprehended Within the scopeof the appended claims.

Having described my invention what I Agular spacing members interposeclaim as new and desire to secure by Letters Patent is:

l. A boiler consisting of a housing; a series of connected coilsarranged therein, one above `the other, the number of convolutions insaid coils decreasing from the lowermost to the uppermost; a burner atthe top of said housing immediately adjacent the top of said coils andarranged to project its flame downwardly over said coils; a water supplyconnection with the lowermost of said coils; anda steampipe connectionwith the 4uppermost coil, substantially as describe 2. A boilerconsisting of a housing; a series of connected coils arranged therein,one above the other, the number of convolutions in said coils decreasingfrom the lowermost to the uppermost; oppositely dis osed anbetween suchcoils and provided with recesses adapted to receive the convolutions ofsaid coils; a central cylindrical core arranged in` the center of saidcoils; aburner at the top of said housing immediately adjacent the topof said coils and arranged to project its flame downwardly over the saidcoils; a water supply connection with the lowermost of said coils; and asteampipe connected with the uppermost coil, substantially as described.i i

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. i

i ALFRED A. OLSON. Witnesses: i

HELEN F. LiLLrs, JosI-IUA R. H. Po'r'rs.

